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Alika [10]
3 years ago
10

After buying some new coins, Andre has 80 coins in his collection. Last month, he had 50 coins. The size of his current collecti

on is what percentage of his collection last month?
Mathematics
1 answer:
marta [7]3 years ago
5 0

Answer:

160%

Step-by-step explanation:

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Please assist on two questions, is offering 30+ points!
slava [35]
1. solve for X and y using both equations to find the point they cross in
−x − y = −5
y = x + 1
Plug in y into first equation
-x-(x+1)=-5
-x-x-1=-5
-2x-1=-5
+1 both sides
-2x=-4
÷-2 both sides
x=2 solve for y
y=2+1
y=3

(2,3)

2. you can set them equal to each other so 2x+4=3x+1
3 0
3 years ago
What is the simplified form of 4(2x - 5) + 2(3x + Y)?
evablogger [386]

Answer:

I think this is the answer! 2x3 + 5x2 - x - 6 let me know if it’s right :)

Step-by-step explanation:

5 0
2 years ago
HELP PLEASE!!! i do not understand
mel-nik [20]

Answer:

a)-3>-7

b)3>-4 The symbol was preserved.

c)-6<8 The symbol was reversed.

Step-by-step explanation:

Hope this helps! :)

5 0
3 years ago
Find the maximum profit and the number of units that must be produced and sold in order to yield the maximum profit. Assume that
V125BC [204]

Answer:

-1.39

Step-by-step explanation:

Revenue and cost as a function of units sold are u(x) = 9x-2x^{2}andc(x)=x^{3}-3x^{2}+4x+1  respectively.

we are have to know for which value or input units are these functions at maximum which translates to for how many units is the revenue maximum and for how many same units is our cost minimum.

5 0
3 years ago
The mean of this data set is 9. What number is missing?<br><br> 11,20,_,3,1
kherson [118]
Let the missing number be x

Mean is the total sum of data over the number of data therefore,

(11+20+x+3+1) / 5 = 9
Then simplify
(35 + x) / 5 = 9
Then multiply 5 to both sides
35 + x = 45
Then subtract 35 to both sides to find x
X= 10

Hope this helps!

7 0
2 years ago
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